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WorksheetsMatter and Energy Unit Review
Total questions: 47
Worksheet time: 49mins
Name
Class
Date
1.
During a phase change what happens to the temperature of the substance?
a)
It always goes up.
b)
It always goes down.
c)
It always stays the same.
d)
It increases and then decreases.
2.
The original source of energy for most things on earth is......
a)
the moon
b)
volcanoes
c)
the sun
d)
the heating system
3.
Th heat energy from the sun travels to earth by
a)
conduction of heat through outer space
b)
radiation of heat through outer space
c)
convection of heat through outer space
d)
reflection of heat from outer space
4.
Which of the following statements is supported by the Electromagnetic Spectrum?
a)
the wavelength of visible light waves are longer than microwaves.
b)
the wavelength of infrared light waves are longer than radio wave.s
c)
the wavelength of microwaves are shorter than ultraviolet light waves.
d)
the wavelength of visible light waves are shorter than infrared light waves.
5.
Which property of light is being illustrated with the pencil in the water glass?
a)
transmission
b)
absorption
c)
reflection
d)
refraction
6.
Which wave has a greater frequency?
a)
A
b)
B
7.
Which wave has less energy ?
a)
A
b)
B
8.
What happens to particles of a substance when cooled?
a)
The particles get bigger and bounce.
b)
The particles get smaller and vibrate.
c)
The particles move faster.
d)
The particles move slower and closer together.
9.
What happens to particles when they are heated?
a)
They speed up and spread out
b)
They slow down and compress
c)
They stop moving
d)
They move closer together and speed up
10.
Which of the following is an example of a phase change where heat energy is ABSORBED?
a)
solid changing to a liquid
b)
gas changing to a liquid
c)
liquid changing to a solid
d)
gas changing to a solid
11.
Which of the following is an example of a phase change where heat energy is RELEASED?
a)
solid changing to a liquid
b)
liquid changing to a gas
c)
liquid changing to a solid
12.
What happens to particle movement/speed when energy is added to a phase?
a)
Particles slow down
b)
Particles go faster
c)
Particles don't move
d)
Particles stay the same speed
13.
Why does position A have the greatest potential energy?
a)
Position A is the first position on the coaster
b)
Position A is the highest on the coaster
c)
Position A does not have the greatest potential energy.
14.
Which 2 letters have the most kinetic energy
a)
W & Y
b)
X & Z
15.
The law of conservation states
a)
energy can not be created or destroyed only transferred from form to another.
b)
Energy can be created and destroyed and is not transferred from one form to another.
c)
Energy can not be created or destroyed only transferred from Potential to Kinetic energy.
16.
Over the 15 minutes what is going to happen to the temperature in the two cups?
a)
Left with increase, right will decrease
b)
Left with increase, right will increase
c)
Left with decrease, right will increase
17.
Which energy transfer is being represented in the photograph? (metal bar between to Styrofoam cups)
a)
refraction
b)
convection
c)
conduction
d)
radiation
18.
Look at the bar graphs. Which one represents a rock that has fallen off a cliff and has almost reached the ground?
a)
A
b)
B
c)
C
d)
D
19.
Look at the 2 circles, which one represents molecules that have been heated?
a)
blue
b)
red
20.
Conduction is able to occur in this demonstration because the Aluminum bar is
a)
silver
b)
a conductor
c)
an insulator
d)
touching the water
21.
A sound wave cannot travel through a
a)
vacuum (empty space)
b)
gas
c)
solid
d)
liquid
22.
You know that the object connected to the wires is a conductor because:
a)
The light bulb is glowing bright.
b)
It's a complete circuit.
c)
It's a closed circuit.
d)
The object is shiny.
23.
What object would best complete this circuit?
a)
A battery
b)
a piece of yarn
c)
an insulator
d)
a conductor
24.
The transfer of energy by electromagnetic waves is known as...
a)
Radiation
b)
Convection
c)
Conduction
25.
The diagram below shows a hot air balloon rising. Propane gas tanks are seen at the bottom of the balloon. What energy transformations occur when propane gas is used to lift the balloon?
a)
Mechanical to light to chemical
b)
Chemical to mechanical to thermal
c)
Thermal to chemical to light
d)
Chemical to thermal to mechanical
26.
"Energy can be transformed from one form into another or transformed from one region or another, but energy cannot be created or destroyed."
Which law is this?
Which law is this?
a)
Law of Conservation of Mass
b)
Newton's Second Law
c)
Law of Conservation of Energy
d)
Newton's Third Law
27.
What energy transformation happens when a geyser erupts?
a)
Radiant ---> Mechanical
b)
Thermal ---> Mechanical
c)
Chemical ---> Sound
d)
Nuclear ---> Electrical
28.
Which of the following is the best energy transformation for a vacuum?
a)
Mechanical ---> Light
b)
Electrical ---> Mechanical
c)
Chemical ---> Sound
d)
Thermal ---> Mechanical
29.
Where is the potential energy the greatest?
a)
A
b)
B
c)
C
d)
D
30.
Which items would have this energy transformation: electrical energy -> thermal energy?
a)
turning on a flashlight
b)
person running
c)
iron for your clothes
d)
candle burning
31.
How many grams of K2Cr2O7, are soluble in 100 g of water at 95 ºC?
a)
83 grams
b)
75 grams
c)
40 grams
d)
12 grams
32.
How many grams of K2Cr2O7, are soluble in 100 g of water at 95 ºC?
a)
83 grams
b)
75 grams
c)
40 grams
d)
12 grams
33.
Which solute is the least soluble at 90 ⁰C?
a)
SO2
b)
KClO3
c)
KI
d)
HCl
34.
Which solute is the least soluble at 90 ⁰C?
a)
SO2
b)
KClO3
c)
KI
d)
HCl
35.
What is efficiency?
a)
The total amount of energy lost
b)
The % of energy lost as heat
c)
The % of energy used to perform work.
d)
how long it takes for energy to be conserved
36.
A substance has a freezing point of -38 degrees C and a boiling point of 356 degrees C. At what temperature would this substance be in a liquid state?
a)
-100 degrees C
b)
-50 degrees C
c)
80 degrees C
d)
375 degrees C
37.
If an object has particles that are moving very quickly, the object 's temperature is probably _____.
a)
cold
b)
slow
c)
big
d)
hot
38.
A metal ball has a density of 2.0 g/cm3 and a mass of 10g, what is the volume?
a)
.5 mL
b)
10 mL
c)
5 mL
d)
2 mL
39.
Frank has an eraser. It has a mass of 4g, and a volume of 2cm3. What is its density?
a)
8 g/cm3
b)
2 g/cm3
c)
.5 g/cm3
d)
24 g/cm3
40.
What will allow more solute to be dissolved in a solvent.
a)
adding more solute
b)
stiring
c)
cooling solution
d)
heat
41.
Energy that is stored in chemical bonds based on the position of the bonds and is then released as thermal energy through chemical reactions is
a)
thermal energy
b)
chemical kinetic energy
c)
Charcoal is burned in a barbecue pit.
d)
electrical potential energy
42.
Which of these is not a source of chemical energy?
a)
Spaghetti
b)
The Sun
c)
Battery
d)
Petroleum
43.
A battery converts what type of energy to another?
a)
sound to kinetic
b)
light to heat
c)
mechanical to electrical
d)
chemical to electrical
44.
As energy moves from the coal to the light bulb, what is happening to the energy along the way?
a)
transformed to sunlight
b)
is recycled
c)
transformed to electricity
d)
becomes steam
45.
How much heat was produced by friction in machine D?
a)
.20 joules
b)
30 joules
c)
20 joules
d)
0 joules
46.
How much energy was output by the machine from Sears?
a)
70 joules
b)
25 joules
c)
40 joules
d)
45 joules
47.
The metal ball was just heated and no longer fits through the ring, why not?
a)
The molecules got bigger.
b)
The ball never fit.
c)
The molecules moved faster and further away when heated.
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